Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
15005excellentexcellent11excellent
14003excellentexcellent11excellent
130018excellentexcellent11excellent
12002excellentexcellent11excellent
11004excellentexcellent11excellent
100010excellentexcellent21excellent
090020excellentexcellent61excellent
080059goodexcellent121excellent
070061lightly pollutedexcellent81excellent
060051goodexcellent61excellent
050055goodexcellent71excellent
040072lightly pollutedexcellent71excellent
030071lightly pollutedexcellent61excellent
020077lightly pollutedexcellent71excellent
010073lightly pollutedexcellent61excellent
000062lightly pollutedexcellent71excellent
230042goodexcellent51excellent
220036goodexcellent51excellent
210030goodexcellent41excellent
200024goodexcellent31excellent
190031goodexcellent41excellent
180024goodexcellent31excellent
170024goodexcellent41excellent
160027goodexcellent41excellent